start moving selenium tests to geb

Basic skeleton for geb tests, first simple tests. The confluence
integration tests were getting to annoying, slow etc.
rename, split test, add test
extract Page objects from VoteSpec
move baseurl to config
upgrade feb to release version
add some more checks to assert(not)voted

- check line class
- check audience count
- check audience names
remove obsolete test (replaced by Geb test)

remove obsolete test (replaced by Geb Test)
migrate tests for property panel
add french translation, closes MV-18